Transmission Availability Transmission Services provides information to assist customers as they reserve and schedule transmission.

Contract Points List View the list of valid Contract Points that can be used to reserve transmission in BPAT OASIS. CDE Open BPA's Customer Data Entry application to view Wheeling Loss and Shared Path data. CDE has replaced the previous CWI system. Outage & Interruption Information View capacity restrictions by path. Hourly TTC Path Limits Outage Summary ATC, AFC and Conditional Firm Inventory View a spreadsheet showing BPA Transmission Services Long-Term Firm (LTF) Available Transfer Capability (ATC) values assuming all lines are and will be in service. AFC/ATC Less Pending Queued Request Inventory View a spreadsheet showing BPA Transmission Services' Long-Term Firm (LTF) monthly Available Flowgate Capability (AFC) values, assuming all lines are in service, less impacts from Long Term Queue pending requests. Long-Term Pending Queue View a spreadsheet summarizing the requests in the long-term queue for Network Flowgates, Interties, and External Interconnections. Long-Term Firm PTDF Calculator Use a tool to determine the impact of a long-term transmission request on BPA Transmission Services internal flowgates. Proposed Outages View long-term outage plans and capacity estimates.

Reservation to E-Tag Point Relationships View a list of reservation points that are associated to more than one e-Tag point. Interties and External Interconnections in OASIS View a list of POR/POD combinations associated with specific interties and external interconnections. Short-Term Firm PTDF Calculator Use a tool to determine the impact of a short-term transmission request on BPA Transmission Services internal flowgates. Transmission System Constraints View a list of system constraints or limitations not associated with Network flowgates. Total Transmission System Load (TTSL) TTSL is an approximation of loading on any part of the BPA transmission system, based on federal and non-federal generation within the BPA control area, and interchange and wheeling onto the system North of Echo Lake and South of Custer Nomograms View the nomograms for North of Echo Lake and South of Custer. Historical Flow Data View information about historical flows over the West of Little Goose and West of Lower Monumental flowgate. The Total Transfer Capability for the West of Lower Monumental flowgate has not yet been determined. Performance Metrics Redispatch Costs Report Transmission Study Metrics Related Information ATC Methodology